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ISSN:    frecuency : 4   format : Electrónica

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Volume 29 Number 3 Year 2010

9 articles in this issue 

Wojciech Batko,Jerzy Stojek

Test of assessing a suitability of the phase trajectory pattern for diagnostics of condition changes of axial piston pumps is undertaken in the presented paper. Accomplishment reasons of investigations together with their laboratory realizations are given... see more

 

Piotr Duda,Dawid Rzasa

Construction elements of power blocks such as collectors, separators or steam valves work in hazardous environment. During start-up and shut-down operations they are exposed to sudden temperature and pressure changes, that cause high stresses at certain p... see more

 

Krzysztof Kotwica

The article presents the influence of work conditions of rotary-tangential picks on their wear while compact rocks mining. There was mainly presented the influence of applying high-pressure support and spraying the tangent-rotary tools with water jets on ... see more

 

Krzysztof Kotwica,Piotr Gospodarczyk,Grzegorz Stopka,Antoni Kalukiewicz

The article presents a new solution of a mining head with asymmetrical disc tools of a complex motion trajectory for hard rocks mining. The developed and manufactured head is to be an alternative for traditional milling heads used in roadheaders. The basi... see more

 

Michal Kozupa,Jerzy Wiciak

The paper is an analytical and experimental study of smart structure, which consist of steel plate with bonded PZTs and porous elastomer layer. Active control of sound radiation from a clamped at the edge square plate is examined. Simulations and numerica... see more

 

Kinga Nalepka,Ryszard Pecherski

Using the results of High Resolution Transmission Electron Microscopy studies of epitaxial layers fcc metal/corundum we have proposed atomistic model of the interfacial structure of the Al2O3-Ni composite. Then, we have carried out the verification of the... see more

 

Jan Sidor

Vibratory mills are applied in processes of mechanical production of powders, micropowders, nanopowders and nanostructures. The paper comprises a description of tube mills operation: vibratory and rotary-vibration ones. It also presents their application ... see more

 

Jan Sikora,Jadwiga Turkiewicz

This paper presents the results of the expanded research program on sound absorbing properties of granular materials (granular polypropylene, foamed polystyrene, gravelite, rubber, mineral wool, and high-silica sand) being often applied as sound absorbing... see more

 

Andrzej Swiatoniowski,Ryszard Gregorczyk

In this paper an probabilistic model of the friction phenomena on the work- back up rolls contact surface has been presented. It has been shown that such character of the disturbance in distribution of zones with static and kinetic friction. can be regard... see more